1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iren [92.7K]
3 years ago
10

What is the main structure of the cell membrane?

Biology
1 answer:
Trava [24]3 years ago
4 0

Answer:

The cell membrane is a biological membrane that separates the interior of all cells from the outside environment which protects the cell from its environment.

You might be interested in
Which era makes up the vast majority of Earth's history?
MAXImum [283]

Answer:

Precambrian era is the longest era in the Earth's history.  It began 4600 million years ago and ended about 540 million years ago.

Explanation:

5 0
3 years ago
Read 2 more answers
Which structure receives food directly from the stomach, where it is mixed with strong digestive juices from the liver and pancr
mrs_skeptik [129]
The small intestine receives food directly from the stomach and this is where food is mixed with strong digestive juices from the liver and pancreas
7 0
3 years ago
A cystocentesis is a answer.....Cystocentesis is a veterinary procedure where a needle is placed into the urinary bladder throug
Phoenix [80]
<span>A veterinary procedure where a needle is injected into the bladder of an animal through the abdominal wall. A sample of urine is then removed.

Hope that helps! </span>
3 0
3 years ago
If the length of the absolute refractory period in cardiac muscle cells was the same as it is for skeletal muscle cells, _______
hodyreva [135]

Answer:

C. tetanic contractions might occur, which would stop the heart's pumping action.

Explanation:

The absolute refractory period of the cardiac muscle action potential refers to the time interval when the voltage gated sodium channels are inactivated. The absolute refractory period lasts ~180 msec. The action potential lasts 200-220 msec.

The refractory period of cardiac muscle is dramatically longer than that of skeletal muscle. This prevents tetanus from occurring and ensures that each contraction is followed by enough time to allow the heart chamber to refill with blood before the next contraction.

In order words, It is important for the cardiac muscle cells to have a longer refractory period, because if they were short like the skeletal muscles, the heart could enter tetanic contraction/summation which is when muscle is stimulated so rapidly that it does not have a chance to relax at all between stimuli.

7 0
4 years ago
Question 11
Ratling [72]

Answer:

Question  11 - c. RNA, RNA polymerase

Question 10 - d. second RNA strand

Explanation:

Its me again the person that made the question. I know the answer. I did it and got a 77.7%

I didn't get a good score. But I moved on to Mandatory 2 Step.

The answer I put on all my questions are the answers I used to get a 77.7%

3 0
3 years ago
Other questions:
  • How many electrons are transferred in the ionic bond between sodium and chlorine in NaCl
    14·1 answer
  • Which of the following is true? A. all organisms obtain water from food
    15·2 answers
  • Which of the following statements is true? Fusion splits atoms. Uranium 235 is produced from fission. The heat from stars is cre
    15·2 answers
  • Which statements describe the universe during the big bang? Check all that apply.
    7·2 answers
  • What is the trait all lipids share?
    6·1 answer
  • What property of dna makes it possible for a probe to find a single-stranded dna target gene?
    14·2 answers
  • What compound provides the reducing power for the calvin cycle reactions?
    9·1 answer
  • WHAT WILL BE GOOD ABOUT<br> ACHIEVING MY GOAL?
    9·1 answer
  • The gene carried by all members of a particular population make up the populations
    11·1 answer
  • What is the role of diaphragm?​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!